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52143005 = 549920899
BaseRepresentation
bin1100011011101…
…0001110011101
310122010010202102
43012322032131
5101322034010
65101334445
71202131265
oct306721635
9118103672
1052143005
11274848a2
1215567425
13aa58965
146cd47a5
15489eba5
hex31ba39d

52143005 has 8 divisors (see below), whose sum is σ = 62700000. Its totient is φ = 41628816.

The previous prime is 52142977. The next prime is 52143017. The reversal of 52143005 is 50034125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52143005 - 28 = 52142749 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7955 + ... + 12944.

It is an arithmetic number, because the mean of its divisors is an integer number (7837500).

Almost surely, 252143005 is an apocalyptic number.

It is an amenable number.

52143005 is a deficient number, since it is larger than the sum of its proper divisors (10556995).

52143005 is a wasteful number, since it uses less digits than its factorization.

52143005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21403.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52143005 is about 7221.0113557590. The cubic root of 52143005 is about 373.5929613227.

The spelling of 52143005 in words is "fifty-two million, one hundred forty-three thousand, five".

Divisors: 1 5 499 2495 20899 104495 10428601 52143005